Just wondered the other gateways such as ical, imap... have you tried those just out of interest.
Also when you try and connect is there anything in the logs?
vshaulsk is your 2.2 or 3.0?
The log shows activity but no errors. Here's a sample. It's all the same stuff.
10/09/12 19:43:48 [7088] [danderson] Initializing message diff engine
10/09/12 19:43:48 [7088] [danderson] 1 messages in state
10/09/12 19:43:48 [7088] [danderson] AlterPingChanges on INBOX stat: M:5-R:0-U:0
10/09/12 19:43:48 [7088] [danderson] Found 0 message changes
10/09/12 19:43:50 [6815] [danderson] Initializing message diff engine
10/09/12 19:43:50 [6815] [danderson] 1 messages in state
10/09/12 19:43:50 [6815] [danderson] AlterPingChanges on INBOX stat: M:5-R:0-U:0
10/09/12 19:43:50 [6815] [danderson] Found 0 message changes
10/09/12 19:43:53 [7088] [danderson] Initializing message diff engine
10/09/12 19:43:53 [7088] [danderson] 1 messages in state
10/09/12 19:43:53 [7088] [danderson] AlterPingChanges on INBOX stat: M:5-R:0-U:0
10/09/12 19:43:53 [7088] [danderson] Found 0 message changes
10/09/12 19:43:55 [6815] [danderson] Initializing message diff engine
10/09/12 19:43:55 [6815] [danderson] 1 messages in state
10/09/12 19:43:55 [6815] [danderson] AlterPingChanges on INBOX stat: M:5-R:0-U:0
10/09/12 19:43:55 [6815] [danderson] Found 0 message changes
10/09/12 19:43:58 [7088] [danderson] Initializing message diff engine