RAM Upgrade

My question:
Upgraded Ram to 3Gb [from 1Gb] using crucial.
All seems to be ok apart from this message:
Windows Experience Index "Cannot complete assessment. This assessment or other operation did not complete successfully. This is due to an error being reported from the operating system, driver, or other component. [OK]
I'm not worried about the score [who cares], it'll never be better than the lowest figure anyway - 3.4 - due to graphics card.
I only clicked on that [experience index] trying to find the graph for the CPU's performance. The index said new hardware, click to update figures etc.
There's no further guidance as to what the message refers to, nothing comes up in the reliability checks etc.
Should I pursue this? Have e-mailed Crucial to see if they are any wiser. Thanks guys

reply:Yes because it's possible that one of the sticks has a fault on it - it's possible that one of the high end chips is gone - so while it all works fine ... when you fill the ram to the top -
the leak shows up .... even for vista 3Gb is difficult to use - so it will only show on a particularly buisy day
you need to test the ram - simple as that
all free - first works in windows - the last two need burning to cd

http://hcidesign.com/memtest/download.html
http://www.memtest86.com/download.html
http://www.ubcd4win.com/contents.htm

The manufactures of the upgrade board said:
If you are experiencing programs freezing, crashes or blue screens while using Windows Vista the problem could be caused by faulty or incorrectly setup memory. To help determine if the problem is caused by a hardware or software failure we recommend the Windows Vista Memory Diagnostic tool. It is built into the Windows Vista operating system, simple to use and provides a great first step for hunting down the problem.

To use this tool, please follow these simple steps:
1) Boot the computer into Windows.
2) Once Windows has loaded, click the 'Start' or round windows logo button.
3) In the 'Start Search' field, type:- memory ,then hit 'Enter/Return'.
4) Next a UAC (User Account Control) window may appear, if so click 'Continue'.
5) The next window you should see is the 'Windows Memory Diagnostic Tool'. From the two options provided, please select 'Check for problems next time I start my computer'.
6) It will then confirm that the memory test has been scheduled.
7) Click 'Close'
8) Next, shut down the system. Do not restart.
9) Power on the computer. The system will start to boot as normal and the run the memory test automatically.
10) By default, the test will run 2 passes of standard tests. The time its takes for the test to complete will vary depending on the speed of the system and the amount of memory to be tested. If errors are detected during the test they will be displayed under the progress bar.
11) Once the test is complete, windows will boot as normal.
12) Once windows has fully loaded to the desktop, a message bubble should appear next to the clock on the bottom right of the screen and confirm the results of the test.
13) If no errors are detected, the problem you are experiencing could be software related. Please try updating your system/motherboard drivers and make sure you have the latest windows updates installed.

Nothing came up from that either !  So am I worrying about nothing? Sorry about the lengthy reply
Paul