Default E-mail problem...I-mate JAM bug or sth?!

Helo, I have set my internet providers e-mail on my I-mate JAM...I have to chose the IMAP4 cause on POP3 settings it doesn`t even connect. But now I have some other problems...even if I chose the "Headers only" options the e-mail client get the full mails content...attachments included. I noticed this when installed the GPRS monitor....When I had the SE P900 to check the e-mail (wheb no msgs) it tooks just app. 1-2KB but on I-mate JAM it tooks abaut 10-15KB. Is this a bug or do I set sth wrong?... :roll:

regards,
Primoz
SPV M3100 + 2gb Sandisk MicroSD
QSTARZ
BT-Q818 GPS
ROM: WM6 custom ROM
Radio version: 1.54.00.10
SPL-2.10. Olipro
IPL-1.04