A1200 works with Dell SR2320L w/o FF/SD!

[Jope]

Interesting, this is probably because of the support for HDMI devices.

See Video Supported Modes on the link:
http://support.dell.com/support/edocs/MONITORS/SR2320L/en/ug/about.htm#Specifications

Probably they extended the "video modes" support to the VGA connector as well.

Surprisingly, the specs say that the monitor will only sync down to 30kHz.. :-)