TempFileManager throws less exceptions

BizHawk.Common/TempFileManager.cs

@@ -47,6 +47,8 @@ namespace BizHawk.Common
 		{
 			var di = new DirectoryInfo(Path.GetTempPath());
 			for (; ; )
+			{
+				if (!System.Diagnostics.Debugger.IsAttached) //exceptions due to can't-delete are annoying. see this for another approach: http://www.codeproject.com/Articles/14402/Testing-File-Access-Rights-in-NET
 				{
 					var fis = di.GetFiles("bizdelete-*");
 					foreach (var fi in fis)
@@ -62,6 +64,7 @@ namespace BizHawk.Common
 						//try not to do more than one thing per frame
 						System.Threading.Thread.Sleep(100);
 					}
+				}
 
 				//try not to slam the filesystem too hard, we dont want this to cause any hiccups
 				System.Threading.Thread.Sleep(5000);