This problem truly depends on the software and what it
will allow you to do. To test if this is a global problem go
to your click your Start button on your desk top (Lower left hand corner
of the screen) and select Run on the menu. Type in 'notepad' in the
Open box and click OK. Now Notepad should be running. Type in
a few sentences. Now take your mouse and highlight the first sentence
of what you just typed in. While the line is still highlighted go up
to the menu bar and select Edit. Under the edit menu select
Copy. Now go back to your sentences you typed and move to the end of
the text and press enter a few times to give yourself some space.
Now go to the menu bar again and select Edit and Paste. You should
see the line you highlighted. If not, highlight the first sentence again
and press the control key and the letter C (CTRL C) now move to a
blank area of the document and press the control key and the letter V
(CTRL V). This also should paste the line you highlighted.
If this is working the problem resides in application you
are trying to cut and paste with. We will need more information from
you about the applications your are working with if this is the
case. You also should be running a good Anti Virus software that is
up to date. Viruses can cause problems like your are having.
You may want to download McAfee's VirusScan 4.0
and check your system.