ks2003, Thank you for posting in the Intel® Communities Support.
In reference to this case, just to let you know, the Intel® 82855GM Graphics and Memory Controller is under status of: End Of Interactive Support / Discontinued, as you can see in the link below:
So, even though Intel® technical support will no longer be provided for this kind of products, still, as an option you may want to try our Discontinued Products Community to get recommendations from fellow community members:
Or you may also find the Discontinued Products Website helpful to address your request:
Still, for this scenario, since the video card is was installed by Dell on their laptop, all the updates in reference to BIOS or drivers are provided by them, if you need to update the video BIOS please get in contact directly with Dell so they can further assist you with this matter:
Intel Customer Support Technician