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Do I need an existing account to order?

If you have not ordered from us before then we will create an account when you place your first order. We can also create an account should you wish to order in the future; simply contact us. You do not need an account to use the shopping basket, and existing accounts do not automatically have a basket set up; if you want to make use of the shopping basket then you will need to register if you have not already done so.

Can my company be invoiced for orders?

This facility is only available to companies in the UK. If you do not have an existing account then we can create one for your company. However, we require payment with the first order and you will need to complete a business terms application form. If you place an order through the site please mention in the comments field that you also require business terms and we will include the necessary forms with the order.

Can I order books that are not listed in the catalogue or on this site?

Although we try and list all of the books that are currently available on the site and in our catalogue we are still often able to obtain other titles. If you cannot find the book(s) you are looking for then please use our feedback form or send a message to www@computer-manuals.co.uk with as much information as possible, such as title, author, ISBN and publisher.

I don't want to order over the Internet. How can I place my order?

You can also order by telephone, fax, or post; for these details please read our contact information.

The order form asks for my credit card details, but I don't trust the Internet to be secure. Can I still order the books?

When you have a secure link to our site the order forms will include fields to enter your credit card details. However, these are not required fields and if you choose no on the credit card payment section we will contact you for payment; if you supply a telephone number then we will ring you, otherwise we will e-mail you to tell inform you of the payment options.

I want to send you an order by electronic mail; how can I do this securely?

Rather than using the secure system we have in place on our site, you can also send us encrypted orders via e-mail. We have PGP (international version), and you can download our public key to add to your key ring. If you haven't already got PGP, and would like to obtain it or get further information, then we recommend a visit to the International PGP Home Page.

If some of the books I order are not in stock, will the order be held until all of them are available?

If any of the titles are not currently in stock we will despatch all those that are available. As other titles come into stock they will be sent out.

I have an SSL compatible browser; why can't I send secure orders?

Proxy servers/firewalls

If you access the Internet through a company firewall you may not be able to use the secure system as it requires a different TCP/IP port to operate. Check with your system administrator that port 443 is available on your firewall; if not, then you will not be able to use any server via SSL as this is the standard port for it's implementation.

 

Microsoft Internet Explorer 3.x users (may also apply to CompuServe and AOL users):

There is a problem with the Secure Sockets Layer version 3 (SSL3) implementation in Internet Explorer 3. Microsoft have confirmed this is an issue, and the workaround is to disable SSL3 support. To do this choose the View menu and click on Options. On the Advanced tab choose the Cryptography Settings button, and clear the check box next to Allows SSL3 (secure) connections. Internet Explorer will then use SSL2 to transmit data securely. You may need to restart Internet Explorer once you have done this to ensure that it recognises the change.

 

Microsoft Internet Explorer 4.0/4.01/5.0 users:

Please ensure that you have SSL2.0 and/or SSL3.0 ticked under the Security settings for Internet Explorer. For IE4.0/4.01 this is under View -> Internet Options -> Advanced (on IE5 this is now under Tools -> Internet Options -> Advanced);  look under the Security heading and make sure that SSL 2.0 and SSL 3.0 are ticked. If they are already ticked try the following: uncheck PCT 1.0, click Apply, turn on PCT 1.0 again, and press OK.

You should then be able to place an ordering securely - if this still does not work, please contact our webmaster as you may have a different error. Please include a list of the Security options that are ticked so that we can test your configuration to find the problem.

 

Any Other Browser

If you are using any other browser and are having problems please check the following:
1. If you have a firewall ensure that port 443 is available for use as this is the standard port number for SSL connections.
2. If you are using a proxy server - many ISPs (Internet Service Providers) now use proxy servers such as FreeServe and Planet Online - please contact the administrator of the proxy server to ensure that SSL connections are supported.

If you are still unable to send secure orders please choose the non-secure server option on the first page of our checkout, and we will ring you on the telephone number you supply to confirm your order and to take your card details. In the comments field of the order please let us know that you were unable to send your card details and we will investigate the problem for you; please include the name of your ISP.

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