Can't Receive Multi-Media Msg's From Virgin or T-Mobile ?

Aletank

I have a Samsung G600 on o2 monthly contract and can send MultiMedia Msg's no problem to all networks but I can't receive them from Virgin or T-Mobile, I get a message on my phone saying "Invalid Argument"
My friend on Virgin is sending from a Samsung U700 and my friend on T-Mobile is sending from a Samsung G800 so there should be no format issues and they are only Jpeg pictures anyway so nothin fancy.
I can receive them from Vodafone and O2 no problem.
Thanks For Any Help!

emeraldbugle

Hey, same problem here, do you just get a grey envelop that you can't open. Wonder if T-mobile have a problem!

http://forums.moneysavingexpert.com/showthread.html?t=885757

Aletank

When the msg first arrives on my phone, it beeps then there is a msg on my screen saying "Invalid Argument" and won't open.
If i try to open it later, I have to open the msg then go to Options and choose Retreive,which it says Retreiving then gives me the "Invalid Argument" msg again.