A few suggestions
I have a few suggestion which could easily bring more members and traffic.
Instead of making this an all computer forum, make it more diverse. People may come and think "i dont want to just chat about computer stuff" and this may cause them to leave. Maybe delete some computer boards and add things such as:
-entertainment:movies, music, tv, celebs etc
-polls: an all polls board
-gaming room: forum games such as word association here, other can make their own games.
-an AIM section: 3 boards for tips and secrets, general aim, and programs
-miscellaneous...web design, programming etc
-gaming: gamecube, playstation 2, xbox, comuputer gaming...
these additions would keep other people coming to your board on a more daily basis to post
Also i have a few suggestions to add some things to the board....
on the bottom of the board add a counter of how many posts and members the forum has...something like this (ex)
Forum Posts: 11785
Registered Members: 1960
for a good growing forum like this, that would be an eye-opener for people to see the success, and want to join...
Also maybe a new layout, i had some in the past and have seen some people very much liked, this one is a bit comfusing, and making it a bit simple could bring more members