My problem has been solved by inadvertance
This might been usefull to anyone having same problem.
I have Firefox, Chrome and IE8 installed on my Win 7 machine. I couldn't use IE 8 for a while since it was automatically crashing after 20 seconds.
Since I couldn't repair it, I went on Windows update and installed IE9.
I can now access and use my vmware server console using IE9 and Chrome . I can now access the console using Firefox but it makes some errors later .
I hope this will ever help someone
Greetings to all.