Problems with supplied AIM clients?

[rennyn]

I've seen quite a few people having issues with the built in/default clients for AIM on their devices.

Have you experienced any issues?
If so, what kind?
What device are you using?

If you can include the version number or any other information, I would like to know as well.

I am just looking for information from the built in/default clients, not third party clients.

Also, if you had issues in the recent past, include those too please.

Thanks!