Problems in macros after chaning Operating system to Windows XP
 

I have recently changed operating system in my PC, prior to change of OS
several macros were running without any problem but since i changed it the
following problem is encountered by me.

In few macros the system displays error message "run time error '1004'" -
Paste method of worksheet class failed" when system runs "ActiveSheet.Paste"
command. Actually it paste the data but displays error.

How this can be avoided ?