Issue I461 [defect,wine,resolved] Particle flying gets very slow after switching tab in View under Wine/Linux. Under Linux Wine 0.9.30 and below, particle flying can slow down considerably after switching to a different tab in View. This primarily affects SIMION 8.0.3-TEST6 to 8.0.4-TEST23 but also affects 8.0.0-8.0.3 if the "Hide" tab is selected. The recommended resolution is to upgrade to the latest version of Wine since this was likely a bug Wine 0.9.30 and below. Alternately (or also) upgrade to SIMION 8.0.4-TEST24, which implements a workaround that "seems" to work in Wine 0.9.30 and below. Reported by jonas-20071119 http://www.simion.com/discuss/viewtopic?p=2020#2020 Internal note: trigged by Freeze/Thaw in service_notebook. Affects wine-0.9.30 with SIMION-8.0.0 to SIMION-8.0.4-TEST23. Resolved in wine-0.9.31 and/or SIMION-8.0.4-TEST24.