Screen freeze

[badbam]

I am using Photoshop 6, and I am having a problem with my screen freezing up when I try to enlarge the picture I am working on.(zoom in I mean) It doesn't matter if I use the navigator or the keyboard. it is frustrating. I am sure I must have some sort of conflict, but I have no idea what. I recently networked two computers together, I also added an HP 5300 scanner and a 970 cse printer. Before I added those items, it was working okay. I have a 30 gig harddrive and a 1 gig processor and tons of memory, so I am sure that's not the problem. Any ideas? I would rather not have to start tearing everything apart.

Thanks

 

[Polyanna]

Uninstall Photoshop and reinstall it.

Under My Computer>Properties>Hardware>Device Manager, check for conflicting hardware problems, any yellow circles with exclamation marks.