Have also not had any issues with Copy/Paste in Ubuntu from version
9.04 / 9.10 / 10.04 and currently have Chrome / Chromium / Firefox /
Opera browsers installed without any change to this function.

If removing Chrome fixed the problem for Corisa then that points to
some sort of error in the install but without putting it back on again
and seeing if the original error appears it's not possible to say if
it really was the Chrome browser itself or a bad install - Linux can
get these as well as Windows

I'd be considering some sort of issue with permissions or technique
but since the same copy/paste worked under a Windows boot with Timmy
then more information about exactly what was copied from where and how
it was attempted is needed.

Cut/Copy/Paste has been an embedded function of all OS's for many
years now but each OS does have its foibles - try it on a Mac and see
the differences, took me a little while to work it out last time I set
one up for a customer