My computer is running very slow recently even I have been scanned by Adware & spybot. Please advise how to test or restore it to the normal speed.

There are a few things that could be the reason, most common problems are:

Disk space - Have you got low disk space? (2Gb or less)
Files clogged in your registry, try running windows disk defrag and see if that helps.

Final thing you could do is just buy a 1Gb stick of RAM and stick it in.

I found that connector you were looking for
Cindy, is this the thing you were looking for?
Wholesale Computer Accessories, Free Shipping, Wholesaler Distributor
It's on the list of computer accessories and parts. They have the DVI video thing to convert that jap monitor to work with your other computer. Just about any other kind of wire adaptor, usb connectors, monitor extension wires, ps2 extention wires, and all kinds of female and male swap connectors and things that I think would help your shop. If that above link don't work then goto FREE Shipping Of Wholesale Items China Direct Wholesaler Distributor and click on computer accessories. Let me know if that is what you need and give me your email address again.

I found that connector you were looking for
Cindy, is this the thing you were looking for?
Wholesale Computer Accessories, Free Shipping, Wholesaler Distributor
It's on the list of computer accessories and parts. They have the DVI video thing to convert that jap monitor to work with your other computer. Just about any other kind of wire adaptor, usb connectors, monitor extension wires, ps2 extention wires, and all kinds of female and male swap connectors and things that I think would help your shop. If that above link don't work then goto FREE Shipping Of Wholesale Items China Direct Wholesaler Distributor and click on computer accessories. Let me know if that is what you need and give me your email address again.

great tool for that is http://ms-errors.com/
also have a free test