ok here is 1 problem i am facing in my 6600 .... the mrouter in the system tray shows that the fone is connected (it changes its color to green and blue) ... but wen i run pc suite it says not connected workin offline .... any suggestions.....
Nokia PC Suite issues
try installing the older versions of PcSuite as from what i've heard,the new ones don't support older fones...
I am not sure mebbe firewall issues try disabling firewall and did u use the latest version of PCSuite try the one Digit has provided this month tho PC Suite does not HAVE issues It ITSELF IS an issue LOL 
arrey bhai log i am using the same version provided by nokia with fone .... and as kumar said it itself is an issue .... it connects at its own free will .... no firewall issues
happened to me once, try reinstalling pc suite.
did that any other suggestion or the cause of the problem ....
Change ur theme...once i got this same problem with my 7610
I just changed the theme to default n restart d phone.It works...try it
I just changed the theme to default n restart d phone.It works...try it