Replying to Matt Clifton & Allan Eckert:
Here's the Etrecheck report (great program - -thanks very much for the tip!)
And you were right about the low RAM & Sophos.
Problem description:
Machine frequently hangs — lots of swirly-discs. Doesn’t seem to matter how many tabs or apps I’m running — it hangs on one or several, or sometimes not at all. I have lots of storage memory available (137.71 GB), but it’s a Mac Pro 10.6.8 with only 2 GB of RAM, which I am told is pretty piddly for today’s programs.
EtreCheck version: 2.1.8 (121)
Report generated March 5, 2015 9:54:25 PM PST
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Click the [Adware! - Remove] links for help removing adware.
Hardware Information: ℹ️
MacBook (13-inch, Late 2009) (Technical Specifications)
MacBook - model: MacBook6,1
1 2.26 GHz Intel Core 2 Duo CPU: 2-core
2 GB RAM
BANK 0/DIMM0
1 GB DDR3 1067 MHz ok
BANK 1/DIMM0
1 GB DDR3 1067 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Battery Health: Normal - Cycle count 166
Video Information: ℹ️
NVIDIA GeForce 9400M - VRAM: 256 MB
Color LCD 1024 x 768
spdisplays_display_connector
System Software: ℹ️
Mac OS X 10.6.8 (10K549) - Time since boot: 0:5:47
Disk Information: ℹ️
Hitachi HTS545025B9SA02 disk0 : (232.89 GB)
- (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / : 249.72 GB (142.14 GB free)
MATSHITADVD-R UJ-898
USB Information: ℹ️
Apple Inc. Built-in iSight
MOSART Semi. 2.4G Wireless Mouse
Apple Inc. BRCM2070 Hub
Broadcom Corp Bluetooth Module
Apple Inc. Apple Internal Keyboard / Trackpad
Adware: ℹ️
Conduit [Adware! - Remove]
Kernel Extensions: ℹ️
/System/Library/Extensions
[not loaded] com.sophos.kext.sav (9.2.0 - SDK 10.8) [Click for support]
[loaded] com.sophos.nke.swi (9.2.0 - SDK 10.8) [Click for support]
Startup Items: ℹ️
AdobeVersionCueCS2: Path: /Library/StartupItems/AdobeVersionCueCS2
HP IO: Path: /Library/StartupItems/HP IO
HP Trap Monitor: Path: /Library/StartupItems/HP Trap Monitor
LoginServer: Path: /Library/StartupItems/LoginServer
Startup items are obsolete in OS X Yosemite
Problem System Launch Daemons: ℹ️
[not loaded] org.samba.winbindd.plist [Click for support]
Launch Agents: ℹ️
[not loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]
[loaded] com.adobe.CS5ServiceManager.plist [Click for support]
[failed] com.sophos.uiserver.plist [Click for support] [Click for details]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Click for support]
[loaded] com.adobe.SwitchBoard.plist [Click for support]
[running] com.fitbit.galileod.plist [Click for support]
[failed] com.sophos.common.servicemanager.plist [Click for support] [Click for details]
User Login Items: ℹ️
ShiftIt Application (/Users/[redacted]/Downloads/ShiftIt.app)
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
HPEventHandler Application (/Library/Printers/hp/hpio/HPEventHandler.app)
HP Scheduler Application (/Library/Application Support/Hewlett-Packard/Software Update/HP Scheduler.app)
Internet Plug-ins: ℹ️
OfficeLiveBrowserPlugin: Version: 12.3.6 [Click for support]
RealPlayer Plugin: Version: Unknown
AdobePDFViewerNPAPI: Version: 10.1.9 [Click for support]
AmazonMP3DownloaderPlugin101736: Version: AmazonMP3DownloaderPlugin 1.0.17 - SDK 10.4 [Click for support]
FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]
Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Click for support]
Flash Player: Version: 16.0.0.305 - SDK 10.6 [Click for support]
QuickTime Plugin: Version: 7.6.6
iPhotoPhotocast: Version: 7.0
AdobePDFViewer: Version: 10.1.9 [Click for support]
Scorch: Version: 6.2.0 [Click for support]
JavaAppletPlugin: Version: 13.9.8 - SDK 10.6 Check version
Audio Plug-ins: ℹ️
iSightAudio: Version: 7.6.6
3rd Party Preference Panes: ℹ️
Adobe Version Cue CS2 [Click for support]
Flash Player [Click for support]
Growl [Click for support]
Time Machine: ℹ️
Time Machine information requires OS X 10.7 "Lion" or later.
Top Processes by CPU: ℹ️
2% firefox
2% WindowServer
1% plugin-container
0% mds
0% ps
Top Processes by Memory: ℹ️
709 MB firefox
41 MB plugin-container
34 MB mds
28 MB WindowServer
19 MB coreservicesd
Virtual Memory Information: ℹ️
420 MB Free RAM
873 MB Active RAM
319 MB Inactive RAM
267 MB Wired RAM
212 MB Page-ins
127 KB Page-outs
Diagnostics Information: ℹ️
Mar 5, 2015, 09:46:51 PM Self test - passed