Strange problem with yahoo messenger

[electrokawal]

Hi friends!
I am facing a strange problem with my yahoo messenger..I just can't see anybody's display pic!...even if that person is online...and I've enabled the display pic...It just shows me a black coloured image...thats it...I've tried installing various versions of yahoo messenger, but nothin seems to work..But others can see my display pic without any problems...Another problem that I face is...I can't use the file sharing option!..neither can I send nor receive files from others...it says that a problem has occurred...or sometimes it downloads the file...and the file size of that downloaded file is very small...The file downloaded is always a corrupt file ....I can't even carry out photosharing..the images don't get loaded...
I am using Cable internet(fivenetworks)
Can this problem be solved?
None of my friends who are using a similar internet connection are facing this problem...

[electrokawal]

Come on people...plz reply...