Login issues

[Mortorin]

Hello all, hope you can help!

I have had a Cacti installation up and running perfectly since last April (wonderful application by the way, couldn't live without it!)

Now, I have this annoying problem. I have Cacti running on a Windows 7 box, no problems there. For the last year (almost) I have been accessing Cacti using IE on a Windows XP box and to this day that still works. However, I am hoping to get rid of that XP machine and I am using a Windows Server 2008 R2 terminal server to do my admin tasks. The problem I have is; when I try to log on using IE on the terminal server I get this endless loop where it throws me back to the login screen again.
I have read several posts on this, tried several things including editing the php.ini file. I have also compared all the settings in IE on the XP and 2008 machines (as I know the default IE settings on servers are a lot more secure) and set them all the same, still no joy!
As I can still access Cacti without any issues from the XP machine I am fairly certain it isn't a Cacti issue as such, but I was just hoping someone here has either seen this before or could point me in the right direction.

Any help would be greatly appreciated!

Oh and I have also tried creating a new account, enabling guest and trying to log on as that, neither worked.

[BSOD2600]

so this problem is with the new install on windows 2008? Tried a different browser? disabled IE's disable IE's enhanced security?

[Mortorin]

Its not a new install of Cacti, that's the same instance I've been using for the last year. I have disabled the IE ESC (or ECS, cant remember what its called). I haven't tried a different browser as that would be a really, really last resort fix. Generally from what I read on these forums from users having similar issues, the browser version didn't make any difference.

[BSOD2600]

check the permissions on the php session path folder is correct.

[Mortorin]

Permissions look right and I tried installing Chrome - still doesn't work

[BSOD2600]

I'd reset the permissions again, just to make sure. I've only heard about logon loops due to php session path permission issues.