Question : Problem: Can't install Nokia 6310i Infrared Modem.

I'm running Windows 2000 SP3 on an IBM Thinkpad 600X.
I am trying to set up an infrared connection with my Nokia 6310i.  

So, I've checked that infrared is enabled on my PC, & the PC recognizes that the phone is there when I place it next to the infrared thingy on the laptop.

I run through the Nokia modem setup supplied on the CD with the phone, & when prompted switch on the infrared setting on the phone.
The install recognizes the phone & runs through seemingly with no problems.
But, it does not install the Nokia modem, although, it does add the 'Nokia Modem Options' icon to the control panel.  It does not however contain any installed modems.

I've been to the Nokia site, there was a Microsoft ircomm patch, but I already have it.

Any ideas?

Answer : Problem: Can't install Nokia 6310i Infrared Modem.

I checked several newsgroups. The common tenor is that you might have to limit your IR connection speed to something like 56000 or lower (down to 9600). This seems to have worked for most people. Still it's highly recommended to have the latest software update on the Nokia 6310i, especially when using Bluetooth connectivity.
Reference:
http://www.irda.org/discussion/msgdetail.asp?id=4010&thread=1691