# DSMlink help **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [April 22, 2009, 7:07am UTC](https://forums.speedlife.net/t/dsmlink-help/66588 "2009-04-22T07:07:10Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Sirrion](https://avatars.discourse-cdn.com/v4/letter/s/5fc32e/32.png) [@Sirrion](https://forums.speedlife.net/u/Sirrion)\ **Post date:** [April 22, 2009, 7:07am UTC](https://forums.speedlife.net/t/dsmlink-help/66588/1 "2009-04-22T07:07:10Z")
I’m in need of help with a error message I get when I open link up, Yesturday I bought a laptop for my car to use for tuning only, and I loaded link up, got “Can’t load main class” as a error message and link closes down any ideas? I currently have v2.5 still tuning with the db9 port, so I bought an adaptor for the usb port, I’m stumped. help? Mod List: (if it matters) Stock Bottom End Stock head with valves, and springs, with 264 or 272 cams DSMlink v2.5 Gt30 3in turbo Back with 38mm Tial external dump 1000cc injectors 255 hi pressure in tank afpr with guage ACT 2600 clutch Magnus SMIM Unknown Brand catch can (i think is greddy) FMIC with short route Greddy Type S 3in GM mas with MAFT Setup for meth and nitrous but neither are hooked up currently