Google Talk Problem

This is common (i think)

Using the same com, where your 'gtalk account' locked message appears. trythis link *www.google.com/accounts/DisplayUnlockCaptcha

or you can even enter the letters in the distorted picture and after signing in restart googletalk and sign in again. but do try the above link.

i have not got this even once.

First go to the link posted by gigyaster and login. Then use google talk.
If you get this everyday, report it to google, then you wont have to do this. I had this problem everyday, and then it was solved.

but what causes this problem?

Pretty random, AFAIK. Perhaps google detected that you are using bouncing IPs(a term used by yahoo, but yeah) that is accessing that account from totally different range of IPs frequently. It may believe one is a bot.

Wow! I use sign into Gtalk daily and ive never seen this msg pop up so far..

^^Get out spammer. Reported

who is the spammer here, and if it is me, all the sites listed in my sig are of my own and NO ADS in it!

nah, nust be some spammer whose post has been deleted already us? spam? no way!!

^^I wasn't telling that to you guys! There was a spam post which is deleted now.