heres my settings i use imap also
<wap-provisioningdoc>
<characteristic type="Sync">
<characteristic type="Connection">
<parm name="Server" value="m.google.com" />
<parm name="AllowSSLOption" value="0" />
<parm name="User" value="*********@gmail.com" />
<parm name="Domain" value="" />
<parm name="Password" value="**************" />
<parm name="SavePassword" value="1" />
</characteristic>
<characteristic type="Settings">
<parm name="PeakStartTime" value="0000" />
<parm name="PeakEndTime" value="2400" />
<parm name="PeakFrequency" value="-1" />
<parm name="BodyTruncation" value="-1" />
<characteristic type="PeakDays">
<parm name="Sun" value="1" />
<parm name="Mon" value="1" />
<parm name="Tue" value="1" />
<parm name="Wed" value="1" />
<parm name="Thr" value="1" />
<parm name="Fri" value="1" />
<parm name="Sat" value="1" />
</characteristic>
</characteristic>
<characteristic type="Mail">
<parm name="Enabled" value="1" />
</characteristic>
<characteristic type="Calendar">
<parm name="Enabled" value="0" />
</characteristic>
<characteristic type="Contacts">
<parm name="Enabled" value="0" />
</characteristic>
<characteristic type="Tasks">
<parm name="Enabled" value="0" />
</characteristic>
</characteristic>
</wap-provisioningdoc>
works every time