I am trying to adjust my PVsyst using actual weather data from the site to compare against production. I have a sample ASCII file that I am adjusting and then uploading. I keep running into various errors (large timeshifts, "the clearness of the best clear day is very high with respect to clear day model", etc.). Is it possible for someone to post a step-by-step on how to do this or point me in a direction where I can find this? I have tried using the F1 help feature and have not found it to be helpful for what I am doing.