V£ GPRS WAP and MMS settings

OK, I hope I'm missing something silly here.

I've just got a new V3 and in web sessions, if I set the default to O2WAP
GPRS, I can access WAP pages via GPRS ..but can't send MMS.

If I change the default web session to O2 MMS, then I can send MMS but not
browse WAP vis GPRS

What am I doing wrong???

Surely, surely I do not have to change the default web session every time I
want to either browse or send MMS!!!
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Regards

John [Essex, UK]
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