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Dear Brian, My limited understanding of this situation is that you have "Picked up _JAVA_OPTIONS" that are interfering with normal IDV start up. We advise you remove or comment out this environment variable from wherever it is originating (.cshrc?). Best Wishes, Unidata IDV Support > When I run IDV on a big Linux machine (after loading java and IDV "modules"), > the memory counter behind the clock only shows 477MB. > > When I changed it to 10000 in the preferences and restarted IDV, > the counter still comes up at 477 MB. (several tries). > Even though the Preferences pane shows this: > [cid:c9a31ba2-7c02-48fc-864c-0d22c7086ba5@amazon.rsmas.miami.edu] > > > > I think this might be from "Picked up" option -Xmx512m as shown below. > How can I override it? > > ----snip > vis1{mapes} 372: /nethome/mapes 5:29:04pm: runIDV > /share/apps/IDV/IDV_3.1u1/runIDV: line 60: Picked: command not found > Picked up _JAVA_OPTIONS: -Xms16m -Xmx512m > > > Ticket Details =================== Ticket ID: JSW-346292 Department: Support IDV Priority: Normal Status: Closed