hi mate, if you have a full clutch pedal and it dont feel spongey i doubt it is bleeding that you require. you fail to mention if theres a problem with more than just one gear.... if it just one then i suspect you have a worn or faulty baulk ring for that gear or possibly the syncro hub,if all gears are affected i wud try changing the gearbox oil first ensuring you use exactly the right oil as there are so many different types of transmission oils on the market for modern vehicles you have to be sure your using the right one....hope this helps.
paul, April 2009