Problem with scanning photos

[chelvis]

I have a scanner model (CanoScan FB620P). I have been using it for at least 2-3 years. Usually I go to Photoshop (photoshop 7) and then File > Import > CanoScanFB620P and when I click on that the scanning window will open. But suddenly I started getting the follwing messages when I try to scan

First message is: "Cannot open communication port. Another application may be using port. Scanner driver will be closed"

Second message is "Could not open TWAIN source. Make sure there is a valid source for your scanner in the TWAIN directory found in the windows directory".

I checked the port and all the outlets and every thing looks fine. How can I sovle this issue? My office PC support is no use. That is why I am posting here. But I didnt understand the second message which talks about TWAIN.

[mouse]

Can you access the scanner through its supplied software or through any other software. It could be Photoshop acting up.

[chelvis]

I never installed the software which came with the scanner (silly me). Now I couldnt find it. Anyway, thanks for helping me out.

[mouse]

Try control panel => scanners & cameras you should be able to test scan or something n there. Otherwise re-install it.

[chelvis]

Thank you very much. Now the scanner is working. I uninstalled my photoshop and then re installed. Also I found the software which came with the scanner and installed it. It did some thing to the TWAIN and now it works! Thanks so much again