Hi Arthur, thanks so much for replying. Here is the system report:
Hardware Information:
MacBook Pro (13-inch, Late 2011)
MacBook Pro - model: MacBookPro8,1
1 2.8 GHz Intel Core i7 CPU: 2 cores
4 GB RAM
Video Information:
Intel HD Graphics 3000 - VRAM: 384 MB
System Software:
OS X 10.9.1 (13B42) - Uptime: 0 days 14:25:4
Disk Information:
TOSHIBA MK7559GSXF disk0 : (750.16 GB)
EFI (disk0s1) <not mounted>: 209.7 MB
Macintosh HD (disk0s2) /: 749.3 GB (657.61 GB free)
Recovery HD (disk0s3) <not mounted>: 650 MB
MATSHITADVD-R UJ-8A8 disk1 : (6.31 GB)
USB Information:
Apple Computer, Inc. IR Receiver
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. Apple Internal Keyboard / Trackpad
FireWire Information:
Thunderbolt Information:
Apple Inc. thunderbolt_bus
Kernel Extensions:
Problem System Launch Daemons:
[failed] com.apple.ucupdate.plist 3rd-Party support link
Problem System Launch Agents:
Launch Daemons:
[not loaded] com.adobe.fpsaud.plist 3rd-Party support link
[not loaded] com.comodo.fileaccessdaemon.plist 3rd-Party support link
[loaded] com.oracle.java.Helper-Tool.plist 3rd-Party support link
Launch Agents:
[not loaded] com.comodo.Agent.plist 3rd-Party support link
[not loaded] com.comodo.TrayMenu.plist 3rd-Party support link
[not loaded] com.divx.dms.agent.plist 3rd-Party support link
[not loaded] com.divx.update.agent.plist 3rd-Party support link
[not loaded] com.hp.messagecenter.launcher.plist 3rd-Party support link
[loaded] com.oracle.java.Java-Updater.plist 3rd-Party support link
User Launch Agents:
[not loaded] com.apple.CSConfigDotMacCert-[...]@me.com-SharedServices.Agent.plist 3rd-Party support link
[not loaded] com.divx.agent.postinstall.plist 3rd-Party support link
[not loaded] com.facebook.videochat.[redacted].plist 3rd-Party support link
[not loaded] com.google.keystone.agent.plist 3rd-Party support link
[not loaded] com.spotify.webhelper.plist 3rd-Party support link
User Login Items:
iTunesHelper
Caffeine
iAlertU
Mail
Dropbox
Internet Plug-ins:
FlashPlayer-10.6: Version: 11.9.900.170 - SDK 10.6 3rd-Party support link
QuickTime Plugin: Version: 7.7.3
Flash Player: Version: 11.9.900.170 - SDK 10.6 3rd-Party support link
OVSHelper: Version: 1.1 3rd-Party support link
DivXBrowserPlugin: Version: 2.2 3rd-Party support link
Default Browser: Version: 537 - SDK 10.9
JavaAppletPlugin: Version: Java 7 Update 45 3rd-Party support link
Audio Plug-ins:
BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
AirPlay: Version: 1.9 - SDK 10.9
AppleAVBAudio: Version: 2.0.0 - SDK 10.9
iSightAudio: Version: 7.7.3 - SDK 10.9
User Internet Plug-ins:
Google Earth Web Plug-in: Version: 7.1 3rd-Party support link
3rd Party Preference Panes:
DivX 3rd-Party support link
Flash Player 3rd-Party support link
Java 3rd-Party support link
Bad Fonts:
None
Old Applications:
None
Time Machine:
Mobile backups: ON
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 697.84 GB Disk used: 85.39 GB
Destinations:
My Passport [Local] (Last used)
Total size: 0 B
Total number of backups: (null)
Size of backup disk: Too small
Backup size 0 B < (Disk used 85.39 GB X 3)
Time Machine details may not be accurate.
All volumes being backed up may not be listed.
Top Processes by CPU:
2% Console
1% WindowServer
1% EtreCheck
0% fontd
0% ocspd
Top Processes by Memory:
176 MB Safari
164 MB com.apple.IconServicesAgent
98 MB WindowServer
86 MB Calendar
84 MB com.apple.WebKit.WebContent
Virtual Memory Information:
205 MB Free RAM
1.75 GB Active RAM
1.55 GB Inactive RAM
489 MB Wired RAM
1.05 GB Page-ins
1 MB Page-outs
Unfortunately, there does not appear to be any crash report in ~/Library/Logs/DiagnosticReports/
Thanks again for your help!