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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I recently upgraded to TRNSYS 17 from 16. When I run a simulation in 17 from a project I created in 16, the solver produces wildly different solutions compared against 16. I made sure all settings in the control card were the same. Is there any known issues with the TRNSYS 17 solver, or issues using studio files created in 16. I am also using dll's I created and worked in 16. Before I opened the studio file in 17, I saved another copy, so I would still have the same files I could open in 16.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>Aaron J. Danenberg<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>Graduate Research Assistant<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>Candidate for Master of Mechanical Engineering, September 2011<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>University of Hartford<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>Dana Hall 103, Research Laboratory 1<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>200 Bloomfield Ave.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>West Hartford, CT 06117<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>