Clear the Cache from Outside Second Life

Log into Second Life and let your Inventory fully load.

Please see this article in Knowledge Base Why do I look like a particle cloud? (Formerly known as: I've suddenly and unexpectedly turned into an ugly woman.)

Tip: If you have tried all of the above, and your avatar is still a cloud, submit a ticket to our Support team for assistance http://secondlife.com/support/

Please also see these articles How can I improve performance ? How do I check for packet loss (network lag)? and this article for suggestions for Turning off WindLight rendering

Make sure you have the latest drivers for your video card.

If you're using wireless networking, you should try troubleshooting with a direct wired connection; we allow, but do not support the use of wireless network connections.

Please update your Windows OS to XP SP3 as recommended by Intel

This article will show you how to get detailed information about the performance of your computer and the Second Life world Statistics Bar Guide

If this is still an issue please Submit a Ticket with Support for a response tailored to your individual situation see JIRA Home page

Thank you : )