Has anyone successfully used the $5 homemade paralell link w/ the TI-83? I've been able to use it with my TI85, but since my school will finally start using more graphing calculators, I need to switch to a TI83. If it can't be used, has the TI-Graph link been released to stores to sell? Thanks a lot! -Linh PS- Please relpy via email, I would really appriciate it.