PI7.4: ESR & ID not opening

Hi Experts,

I am using PI 7.4 on windows 7 (64 bit version).

I am not able to open ESR & ID. I have tried with many JRE versions(1.6 u 25, 1.6 u 33, 1.6 u 45, 1.7 u65) but nothing worked.

Hosts file is properly updated and java cache is also cleaned.

Strange part is, I can open it on other systems using my credentials but not on my laptop.

Please advice.

Regards,

Vikram