Sorry for the delayed response can you please Clarify and follow the steps suggested below
What is Operating system you use?
Did you made any recent changes to the system (Software/ hardware)?
What is the version of IE you use in the system?
Run MVT and fix any issue it detect
Moving the thread
thanks matey I upgraded to firefox 3.6 and that did the trick !!!
That's great. But whether or not you use Internet Explorer make sure it is the latest also. Always wise to keep all aspects of your system and software totally up to date.